Note 6 - Property and Equipment (Details) - Components of Property and Equipment (USD $) In Thousands, unless otherwise specified					12 Months Ended				12 Months Ended				12 Months Ended				12 Months Ended
	May 25, 2014	May 26, 2013	May 25, 2014 Land and Building [Member]	May 26, 2013 Land and Building [Member]	May 25, 2014 Land and Building [Member] Minimum [Member]	May 25, 2014 Land and Building [Member] Maximum [Member]	May 25, 2014 Leasehold Improvements [Member]	May 26, 2013 Leasehold Improvements [Member]	May 25, 2014 Leasehold Improvements [Member] Minimum [Member]	May 25, 2014 Leasehold Improvements [Member] Maximum [Member]	May 25, 2014 Computer, Capitalized Software, Machinery, Equipment and Auto [Member]	May 26, 2013 Computer, Capitalized Software, Machinery, Equipment and Auto [Member]	May 25, 2014 Computer, Capitalized Software, Machinery, Equipment and Auto [Member] Minimum [Member]	May 25, 2014 Computer, Capitalized Software, Machinery, Equipment and Auto [Member] Maximum [Member]	May 25, 2014 Furniture and Fixtures [Member]	May 26, 2013 Furniture and Fixtures [Member]	May 25, 2014 Furniture and Fixtures [Member] Minimum [Member]	May 25, 2014 Furniture and Fixtures [Member] Maximum [Member]	May 25, 2014 Construction in Progress [Member]	May 26, 2013 Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Years of useful life					15 years	40 years			3 years	20 years			3 years	20 years			3 years	7 years
Gross property and equipment	$ 118,971	$ 104,743	$ 56,378	$ 52,527			$ 1,079	$ 1,029			$ 53,715	$ 44,583			$ 824	$ 766			$ 6,975	$ 5,838
Less accumulated depreciation and amortization	(44,831)	(38,932)
Net property and equipment	$ 74,140	$ 65,811